198881364 has 96 divisors (see below), whose sum is σ = 532578816. Its totient is φ = 57214080.

The previous prime is 198881359. The next prime is 198881369. The reversal of 198881364 is 463188891.

198881364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (198881359) and next prime (198881369).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198881369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209539 + ... + 210485.

It is an arithmetic number, because the mean of its divisors is an integer number (5547696).

Almost surely, 2^198881364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198881364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266289408).

198881364 is an abundant number, since it is smaller than the sum of its proper divisors (333697452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198881364 is a wasteful number, since it uses less digits than its factorization.

198881364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1043 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The square root of 198881364 is about 14102.5304112418. The cubic root of 198881364 is about 583.7112047118.

The spelling of 198881364 in words is "one hundred ninety-eight million, eight hundred eighty-one thousand, three hundred sixty-four".